Automobile surface sander



June 1 1, 1935. FARLEY 'l AUTOMOBILE SURFACE SANDER 1 :w n 8 m 4Sheets-Sheet Attorney Filed May 4, 1934' June 11, 1935. T, FARLEY I2,004,859

AUTOMOBILE SURFACE SANDER Filed May 4, 1 4 Sheets-Sheet 2 I m I I Q:

I Q Inventor glee TF6? June 11, 1935. 1.. T. FARLEY AUTOMOBILE SURFACESANDER Filed May 4, 1934 4 Sheets-Sheet 3 r In van or wr/q .Zy/ef June11, 1935. T. FARLEY 2,004,859

AUTOMb BILE SURFACE SANDER Filed May 4, 1934 4 Sheets-Sheet 4 Irwcnlor@Qzm i i/[emery atented June 11, 1935 UNITED STATES PATENT OFFICE2,004,859 AUTOMOBILE SURFACE SANDER Lyle T. Farley, Norwich, N. Y.Application May 4, 1934, Serial No. 723,960

4 Claims. This invention has as its object to provide an improvedequipment for automobiles of the type including generally a containerfor sand or other abrasive material together with means for supplyingair under pressure to the container to effect a discharge of the sandtherefrom, and means for delivering the sand to the surface or road in amanner to enable the wheels of the automobile or similar motor vehicleto obtain a positive grip upon a slippery surface and thereby preventskidding and at the same time insure a positive traction action betweenthe wheels and the road surface. v

The invention together with its objects and advantages will be bestunderstood from a study of the following description taken in connectionwith the accompanying drawings wherein:

Figure 1 is a top plan view illustrating the application of theinvention, certain parts being omitted.

Figure 2 is a plan view of the equipment.

Figure 3 is a sectional view taken substantially on the line 3-3 ofFigure 2.

Figure 4 is a detail view line 4-4 of Figure 1.

Figure 5 is a perspective View of a rock shaft.

Figure 6 is a perspective view of a combined spring and guide member.

Figure 7 is a perspective view of a nozzle, certain parts being brokenaway and shown in section.

Figure 8 is an elevational view of a valve equipped portion of aconduit.

Figure 9 is a sectional view through the valve equipped portion of theconduit.

Figure 10 is a sectional view through the release valve for the aircrank.

Figure 11 is a perspective view rod.

Figure 12 is an enlarged view partly in section and partly in elevationshowing the mounting for an air compressor.

Figure 13 is a sectional view taken substantially on the line |3l3 ofFigure 12.

Figure 14 is an enlarged fragmentary sectional view through the sandcontainer.

Figure 15 is a view of a discharge nozzle, certain of an operating partsbeing broken away and shown in section,

and

Figure 16 is an enlarged sectional view taken substantially on the lineIii-l6 of Figure 1.

Referring to the drawings by reference numerals it will be seen that thechassis of the automobile illustrated in Figure 1 is typical, and thatthe front wheels 'of the automobile are intaken substantially on dicatedby the reference numeral I while the rear wheels are indicated by thereference nu- .merals 2. The chassis or frame bars are indicated by thereference numerals 3 while the reference numeral 4 indicates thepropeller shaft and the 5 reference numeral 5 the brake pedal. Thetransmission shaft connected with the propeller shaft 4 is indicated bythe reference numeral 6, and in the present instance, and for a purposehereinafter made manifest the shaft 6 is provided with 10 a pulley 1.The rod connection between the brake pedal 5 and the brake shaftisindicated by the reference numeral 3. In accordance withthe presentinvention there is suitably mounted between the chassis bars 3 15 acontainer 9 adapted to contain sand or other suitable abrasive materialIll. The container .9 is provided with a suitable filling cap II, and atopposite ends thereof with outlets l2 having branches l3, I4. Conduitsfor the sand are indi- 20 cated by the reference numerals l5, and eachconduit is provided with a forwardly extending branch I 6 and arearwardly exten ng branch l1. Connected with the ends of the rearwardlyextending branches l1 are nozzles l8 having flared mouth portions I 8adisposed in proximity to the rear wheels 2. The forwardly extendingbranches iii are connected with nozzles I 9. that are supported atspaced points by suitable brackets 20v which are in turn secured to theframebars 3. At the ends thereof the nozzles I 9 are disposed laterallyand are curved downwardly providing in advance of the wheels I dischargeheads or months 20a. As clearly shown in Figure 1 the branches l3 of theoutlets l2 are connected with the conduit branches I! while the outletbranches 4 are connected with the conduit branches l6. At theconnections between the branches i1 and nozzles l8, and also at theconnections between the branches I6 and the nozzles l9 are locatedvalves 2| and each of these valves is shown in Figures 8 and 9 andincludes a casing 2111 that connects a. conduit branch with its nozzle,and pivotally mounted within the casing 2 la is a flap valve 22 which inclosed position engages a stop 23. Externally of the casing 2| the valve22 is provided with a crank 24 to which is connected one end of a spring25 that is suitably anchored at its opposite end to the casing assuggested. in Figure 8. Under action of spring 25 the valve 22 -50. isnormally retained in closed position, that is the full line .positionshown in Figure 9. To effeet a positive discharge of the sand from thecontainer 9 there is provided a suitably mounted air tank 26 that hasoutlets 2! connected with bers 33 that engage r the conduits l5,

. ing movement and to and at the connections between the outlets 21 andthe conduits" are control valves 23. For normally retaining the controlvalves 23 in closed position the cranks 23:: thereof' are connected withone end of springs 23 anchored to one side of the tank 23 as clearlyshown in Figures 1 and 2.

The tank 23 is supplied with air through a conduit connection 33 betweenthe tank 23 and an air compressor 3|.

The compressor transverse support the compressor 3| is 3| is mounted toslide on a 32, and at the base thereof provided with channel memthe sideedges of the member 32 for guiding the compressor 3| in its slidretainthe compressor in proper engagement with the support 32.

The shaft of the compressor 3| is provided with a pulley 34 and thecompressor is adapted to be driven from the motor shaft 3'through themedium of a belt 35 trained over the pulleys 1 and 34 as shown inFigure 1. 1

Any suitable dash control means 33 may be employed for shifting thecompressor 3| along its support 32, and in the present instance suchcontrol means 33 is connected with the compressor 3| through the mediumof a cable 31, an intermediate portion of which is trained over asuitably'mounted pulley 33. The compressor 3| is normally retained atone end of its support 32 through the medium of coil springs 33 anchoredat one end to brackets 43 and connected at an opposite end with themembers 33 as suggested in Figure 12. Obviously when the compressor 3|is in the position shown in Figures 1 and 12 drive may be transmittedfrom the shaft 3 through the belt and pulley means to the com pressorfor operating the latter. When it is desired to interrupt this drive theoperator properly manipulates the control 33 in order to exert a pull onthe cable 31 against the action of springs 33 to cause the compressor 3|to move inwardly toward the transverse center of its support 32. Thisinward movement of the compressor will cause slack to develop in thebelt 33 sufllclent to interrupt the drive between the shaft 3 and thecompressor.

The air tank 23 is provided with a suitable relief valve clearly shownin Figure 10 as indicated by the reference numeral 4|. The equipmentalso includes as a part thereof a suitable air gauge 42 that may beconveniently mounted on the instrument board, and'this air gauge isconnected with the tank 23 through the medium of a conduit 43. r

For opening the valve 23 to permit a discharge I .of sand through thenozzles I3 and I3, incidental to an application of the brake thefollowing mechanism is provided. A transversely mounted rock shaft 44 isprovided with arms 45 that are connected through the medium of links 43with the cranks of the valves 23. The shaft 44 is also provided with acrank arm 41 and pivotally connected to the crank arm 41 is one end of acontrol rod 43. At its free end the rod 43 is formed as at 431: andadapted to engage a block 43 secured at any desired position on theaforementioned pedal rod 8. The end 43:: of the rod 43 is normally andreleasably retained in the path of movement of the block 43 through themedium of aspring member 53 having a free end shaped as at 5| tostraddle the rod 43. The spring memspring 50 will return to its and I4.This suction will be suflicient to draw the sand from the container '3in a manner to effect a positive and emcient discharge of the sandthrough the nozzles l3 and I3 on to the road surface and in the regionof the wheels I and 2 of the automobile and in advance of the wheel tothereby prevent skidding and insure a tractive, action between thewheels and the surface of the road.

In this connection it will be apparent that the force of the air andsand against the valves 22 will be sufllcient to cause the valves toswing upwardly to the dotted line position shown in Figure 9 so as notto interfere with the passage of the sand through the conduits anddischarge nozzles.

' When it is desired to operate the brake pedal 5 without disturbing theposition of the valves 28 the operator by pulling up on the hand rod 34that is connected at 43 will draw the rod 43 upwardly to the dotted lineposition shown in Figure 4 and thereby place the end 43:; of the rod outof the path of movement of the block 43. The spring 33 will of courseyield to the pull exerted on the rod 54 to permit the rod 43 to movefrom the full line to the dotted line position shown in Figure 4. Uponrelease of the rod 54 the rod 43 under action of normal or full lineposition shown in Figure 4.

Having thus described my invention," what I claim as new is:

l. A sanding unit attachment for disposition on a motor vehicle, saidattachment comprising a sand container, conduit pipes leading therefrom,valves operable to control the discharge through said conduits, andmeans for operating the valves from the brake pedal of the vehicle, anair tank in communication with the sand container, an,

air compressor in communication with the air tank, a support for the aircompressor extending transversely of the vehicle and-along which the aircompressor ismovable, means for driving the compressor from the motorshaft of the vehicle including belt and pulley drive means, and meansfor moving the compressor along its support to develop or take up slackthereby control the driving connection between the motor shaft and thecompressor.

2. A sanding unit attachment for disposition on a motor vehicle, saidattachment comprising in combination asanding apparatus,'an aircompressor connected therewith, a fixed support for the compressor andalong which the same is adapted to travel, an operating connection be?tween the air compressor and the primemover of the motor vehicleincluding a belt and pulley drive means, and means for moving the aircompressor along its support in a manner to control the drive connectionbetween the compressor and the prime mover by controlling the slack inthe belt of said belt and pulley drive connection.

3. In an automobile, the combination of a prime mover, a compressor,supporting means for the compressor and its lower end with the rod inthe drive belt to along which the compressor is movable transversely ofthe automobile, belt and pulley means operatively connecting the primemover with the compressor, and means for shifting the compressor alongits support relative to the prime mover for taking up or increasingslack in the belt of said drive means and thereby con trol the drivingconnection between said prime mover and the compressor.

4. In an automobile, the combination with the 10 prime mover oi theautomobile, 01' a support extending transversely oi the automobile, amember adapted to be driven from the prime mover slidably mounted on thesupport, a drive connection between the prime mover and said member, andmeans for moving said member along its support for placing said memberthrough said driving connection, into and out of drivenengagement withthe prime mover.

LYLE T. FARLEY.

